The amino acid acceptor arm of the tRNA is at its:

(1) DHU loop

(2) TψC loop

(3) 5' end

(4) 3' end

Which antibiotic inhibits interaction between t-RNA and m-RNA during bacterial protein synthesis?

(1) Erythromycin

(2) Penicillin

(3) Streptomycin

(4) Tetracycline

Amino acid sequence, in protein synthesis is decided by the sequence of

1. t-RNA

2. m-RNA

3. c-DNA

4. r-RNA

What is true about tRNA?

1. It binds with an amino acid at it 3’ end

2. It has five double stranded regions

3. It has a codon at one end which recognizes the anticodon on messenger RNA

4. It looks like clover leaf in the three dimensional structure.

The binding site of tRNA with mRNA & amino acids respectively are

(1) mRNA with DHU loop and amino acid with CCA end.

(2) mRNA with CCA end and amino acid with anticodon loop.

(3) mRNA with anticodon loop and amino acid with DHU loop.

(4) mRNA with anticodon loop and amino acid with CCA end.

Which of the following set of options is used in translation?

1. hnRNA, tRNA, rRNA

2. mRNA, tRNA, rRNA

3. mRNA, tRNA, hnRNA

4. hnRNA, rRNA, tRNA

What would happen, if in a gene encoding a polypeptide of 50 amino acids, 25^th codon (UAU) is mutated to UAA?

(1) A polypeptide of 49 amino acids will be formed

(2) A polypeptide of 25 amino acids will be formed

(3) A polypeptide of 24 amino acids will be formed

(4) Two polypeptides of 24 and 25 amino acids will be formed

The order and sequence of amino acids are defined by

1. Nucleotides sequences in DNA

2. Nucleotides sequences in mRNA

3. Nucleotides sequences in template strand of DNA

4. Nucleotides sequences in non- template strand of DNA

Formation of peptide bond is

1. active process

2. passive process

3. both active and passive process

4. neither active nor passive process

Which of the following is incorrect for protein synthesis

1. Ribosomes are the cellular for protein synthesis

2. 23s rRNA act as catalyst for peptide bond formation in all organisms

3. UTR are required for efficient translation process

4.The ribosome proceeds to the elongation phase of protein synthesis